21. The coenzyme NAD is not itself currently used as a treatment for any disease. 22. Different sources give slightly different definitions of coenzymes , cofactors, and prosthetic groups. 23. There is some evidence for the benefits of coenzyme Q10 in treating heart failure. 24. It is also promoted commercially as a coenzyme Q 10 ( CoQ 10 ). 25. The cofactors : cobalt, and Cobamide coenzyme . 26. Steric hindrance is the major limiting factor in the synthesis of the coenzyme analogs. 27. When the enzyme is inhibited by methotrexate, the cellular levels of folate coenzymes diminish. 28. Coenzymes are small organic molecules that can be loosely or tightly bound to an enzyme.29. Unlike coenzyme Q, which carries two electrons, cytochrome c carries only one electron. 30. NADP and NAD are coenzymes for many dehydrogenases, participating in many hydrogen transfer processes.
